baber/WOPTO huggingface dataset:
Patent WO-2019033746-A1 (WO)
Title: Improved method for preparation of 5r-benzyloxyaminopiperidine-2s-formate and oxalate thereof
Inventor: WANG BAOLIN
IPC: C07D211/60
Filed: 2018-03-02
Abstract: The present invention provides an improved method for the preparation of 5R-benzyloxyaminopiperidine-2S-formate and an oxalate thereof. The present invention uses L-glutamic acid or L-glutamic acid sodium salt as a starting material, and prepares a compound III by a substitution reaction with chloroacetic acid under basic conditions; reacting the compound III with an alcohol for an esterification reaction in the presence of an acidic reagent, to obtain compound IV; intramolecularly condensing compound IV into a ring and hydrolytically decarboxylating and esterification of the same under the action of a strong base to obtain compound V; condensing compound V with benzyloxyamine hydrochloride in the presence of a base to obtain compound VI; and reducing and chirally separating compound VI to obtain 5R-benzyloxyaminopiperidine-2S-formate oxalate, and neutralizing the compound IIb to give 5R-benzyloxyaminopiperidine-2S-formate. The 5R-benzyloxyaminopiperidine-2S-formate or 5R-benzyloxyaminopiperidine-2S-formate oxalate is useful in the preparation of avibactam. The present invention uses cheap and easily available raw materials, has high reaction selectivity, and has an environmentally-friendly production process.
Patent WO-2018161885-A1 (WO)
Title: 洗衣系统、洗衣机及其耗水量计算方法
Inventor: CHEN YULING
IPC: D06F34/04
Filed: 2018-03-06
Abstract: 一种洗衣系统、洗衣机及其耗水量计算方法，其中耗水量计算方法包括在排除衣物吸水因素后计算进水速率，并根据所述进水速率和进水时间，计算耗水量。上述洗衣机包括水位传感器、控制器以及通讯模块。上述洗衣系统包括上述洗衣机以及智能终端和云平台中的至少一个。
Patent WO-2018233330-A1 (WO)
Title: Pan-tilt and camera assembly having same
Inventor: ZHANG ZHENGLI
IPC: H04N5/232
Filed: 2018-03-20
Abstract: A pan-tilt (100), comprising: a stability augmentation assembly (10) used for mounting a photographing device (200); a handle (30) connected to the stability augmentation assembly (10); and a display screen (20) mounted on the handle (30) and used for displaying an image captured by the photographing device (200), so that a user can control the stability augmentation assembly (10) according to the captured image. Also provided is a camera assembly having the pan-tilt (100).
Patent WO-2019136871-A1 (WO)
Title: Communication method, network device, and terminal device
Inventor: LIU YONG
IPC: H04W72/04
Filed: 2018-04-16
Abstract: Provided in the present application are a communication method, a network device, and a terminal device, the method comprising: on the basis of a resource binding granularity value, a network device determines at least one precoding resource block group in the scheduling resources corresponding to a terminal device, the type of the resource binding granularity value being one of a first type value and a second type value, and the methods for determining the precoding resource block group corresponding to the first type value and to the second type value being different; and the network device transmits data to the terminal by means of the at least one precoding resource block group. Thus, by means of using different methods for determining at least one precoding resource block group in scheduling resources on the basis of the differences of the resource binding granularity values, the embodiments of the present application can meet the needs of different resource binding granularity values.
Patent WO-2019178935-A1 (WO)
Inventor: YANG SHIHONG
IPC: H05B37/02
Filed: 2018-05-23
Abstract: A self-adjustment method for a bleeder current and an LED silicon-controlled light adjusting circuit, which detects a leaking current when a silicon-controlled module is shut off, and controls a bleeder current according to the magnitude of the leaking current; the magnitude of the bleeder current is correspondingly configured, and the silicon-controlled module is controlled to reliably conduct, thus greatly reducing the loss of a power source and increasing the efficiency of the power source.
Patent WO-2018233448-A1 (WO)
Title: Multiplex fluoroimmunoassay method for rapidly distinguishing rabbit hemorrhagic disease virus, sendai virus and lapine rotavirus, and reagent
Inventor: WU MIAOLI
IPC: C12Q1/68
Filed: 2018-05-25
Abstract: Disclosed are a multiplex fluoroimmunoassay method for rapidly distinguishing the rabbit hemorrhagic disease virus, Sendai virus and lapine rotavirus, and a reagent. The fluoroimmunoassay method comprises: obtaining a target amplification fragment by means of PCR; then hybridizing an amplification product, fluorescence coded microspheres and streptavidin-phycoerythrin; reading the MFI value through a detector; and distinguishing different types of viruses.
Patent WO-2019024633-A1 (WO)
Title: Styrene copolymer with reversible crosslink bond and preparation method therefor
Inventor: ZHANG AIMIN
IPC: C08L45/00
Filed: 2018-06-29
Abstract: Disclosed are a styrene copolymer with a reversible crosslink bond, a preparation method therefor and the use thereof. First, a styrene copolymer with a hydroxyl group is synthesized, and then reacted with a furan derivative monomer to form a styrene copolymer with a furyl group, and the styrene copolymer is then reacted with a polyfunctional maleimide derivative to generate a styrene copolymer with a reversible crosslink bond. The styrene copolymer with the reversible crosslink bond improves the solvent resistance of a styrene copolymer material. The reversible crosslink bond in a styrene copolymer material with a reversible crosslink bond can be broken at a high temperature, and the material has secondary processing properties and can be used repeatedly.
Patent WO-2020006699-A1 (WO)
Title: Method and apparatus for voice processing
Inventor: CHEN SHANGSONG
IPC: G10L21/02
Filed: 2018-07-04
Abstract: Provided in the present application are a method and apparatus for voice processing. The method comprises: acquiring a first detection parameter used for indicating a signal change amount of signal transmission between an electronic device and a voice playback device; and determining a target voice according to the first detection parameter, first voice information, and second voice information that is generated after mixing the target voice and third voice information. Since the first detection parameter is introduced during the process of determining the target voice, the echo cancellation effect is improved, so that the determined target voice comprises fewer echoes, thereby improving the recognition rate of the target voice.
Patent WO-2019052280-A1 (WO)
Title: Earthquake warning apparatus and earthquake warning light
Inventor: WANG JINHUA
IPC: G08B21/10
Filed: 2018-07-27
Abstract: Disclosed is an earthquake warning apparatus comprising a warning light and a base, wherein the waning light is integrated with: a power supply module and an earth magnetic field detection module, wherein the earth magnetic field detection module detects earth magnetic field abnormality and then emits an opto-acoustic pre-warning signal; a first vibration sensing module sensing mild vibration and emitting a first sensing signal; a second vibration sensing module sensing strong vibration and emitting a second sensing signal; a second control chip emitting, after receiving the second sensing signal or after simultaneously receiving both the first sensing signal and the opto-acoustic pre-warning signal, an opto-acoustic warning signal; a luminous alarm light receiving the opto-acoustic pre-warning signal and giving luminous pre-warning, and receiving the opto-acoustic warning signal and giving luminous warning; an illumination module which receives the opto-acoustic pre-warning signal or the opto-acoustic warning signal and emits light for illumination; and a power supply control module switching the power supply of the power supply module for the lighting module and the earth magnetic field detection module and the second control chip. The present utility model can both give warning and provide illumination in an emergency, and is suitable for household use.
Patent WO-2020029210-A1 (WO)
Inventor: Pan Yingqiang
IPC: G06F3/0481
Filed: 2018-08-09
Abstract: 一种复制内容选择方法、终端及存储介质，其中方法包括：当检测到复制操作时，终端识别所述复制操作的操作类型（S101）；根据所述操作类型生成并输出相应的复制选项菜单（S102）；所述终端根据所述至少一个复制选项中的目标复制选项，从预先选取的第一内容中确定出与所述目标复制选项匹配的第二内容（S103）；所述终端将所述第二内容缓存到复制面板中（S104）。可以实现复制内容的智能选择。
Patent WO-2020000626-A1 (WO)
Title: 一种灯光装置
Inventor: Yang swiss
IPC: F21S8/00
Filed: 2018-08-29
Abstract: 一种灯光装置，包括：光源、设置有若干图案片(25)的图案盘(5)、旋转轴(6)和传动机构，旋转轴(6)穿过图案盘(5)的轴心，传动机构带动旋转轴(6)旋转，使得图案盘(5)转动，图案片(25)依次旋转至光源发出的光线的光路上，还包括图案盘(5)定位装置，所述图案盘(5)定位装置包括霍尔板(2)、霍尔板固定支架(3)与磁铁(4)，霍尔板(2)安装在霍尔板固定支架(3)上，磁铁(4)安装在图案盘(5)上，所述图案盘(5)旋转使磁铁(4)接近霍尔板(2)产生磁感应。本灯光装置有效实现了灯光装置图案盘的回位定点，减少了误差，提高了图案盘(5)回位定点精准性和灯具的艺术营造效果，适应于各种灯具的图案盘的回位定点。
Patent WO-2020029361-A1 (WO)
Title: Sensor
Inventor: ZOU QUANBO
IPC: G01H11/02
Filed: 2018-09-06
Abstract: A sensor. A detection structure comprises a first magnet (7,150), a second magnet (9,160), and a magnetoresistive sensor (8,110) disposed in a common magnetic field formed by the first magnet (7,150) and the second magnet (9,160). At an initial position, the magnetoresistive sensor (8,110) is located at a position where the magnetic field direction of the first magnet (7,150) is opposite to the magnetic field direction of the second magnet (9,160); the magnetoresistive sensor (8,110) is configured to sense a change in the common magnetic field of the first magnet (7,150) and the second magnet (9,160) during vibration of a diaphragm (2,120) to output a varying electrical signal. As the magnetoresistive sensor (8,110) is simultaneously subjected to the first magnet (7,150) and the second magnet (9,160), the first magnet (7,150) and the second magnet (9,160) are combined together to reduce the intensity of the whole magnetic field, the sensitivity for a change in the magnetic field is improved in a linear range of the magnetoresistive sensor (8,110), and finally, the detection sensitivity of the magnetoresistive sensor (8,110) is improved.
Patent WO-2020061972-A1 (WO)
Title: 一种基于卷积神经网络的糖尿病视网膜病变诊断技术
Inventor: LU GUANGHUI
IPC: G06N3/04
Filed: 2018-09-27
Abstract: 一种基于卷积神经网络的糖尿病视网膜病变诊断技术，包括数据预处理、模型设计、模型初始化、特征提取、特征融合等流程。所述数据预处理是对糖尿病视网膜患者的视网膜眼底高清图像进行裁剪以及过采样；所述模型设计是基于残差卷积网络设计的深度学习网络结构；所述模型初始化是通过对传统初始化参数方法的改进；所述特征提取是对深度学习网络训练过程中的数据，在训练收敛以后进行最后一层的特征提取并存储；所述特征融合是对上一阶段存储的特征进行二次方叠加整合然后进行再次训练预测。针对大量的糖尿病患者的视网膜图片进行病变种类诊断，能够快速的进行结果输出，并且诊断正确率高。
Patent WO-2020062150-A1 (WO)
Inventor: CHENG PENG
IPC: H04W72/04
Filed: 2018-09-29
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for reducing the overhead associated with performing beam or cell measurements on reference signals and reporting the measurements to a serving base station (e.g., to facilitate radio resource management (RRM) at the source base station). As described herein, a base station may transmit a control message to a user equipment (UE) indicating a quasi co-location (QCL) configuration for measurement reporting. In particular, the control message may indicate that groups of reference signals are quasi co-located for measurements reporting. Accordingly, the UE may perform and report measurements for a subset of the groups of reference signals, or the UE may perform and report group measurements for the quasi co-located groups of reference signals to limit the overhead associated with performing and reporting measurements.
Patent WO-2020077643-A1 (WO)
Inventor: SHI CONG
IPC: H04W76/28
Filed: 2018-10-19
Abstract: Selon certains modes de réalisation, la présente invention concerne un procédé de communication sans fil et un dispositif terminal. La durée de surveillance d'un PDCCH peut être réduite, de façon à atteindre l'objectif d'économie d'énergie. Le procédé comprend les étapes suivantes consistant à : un dispositif terminal envoie une demande de planification à un dispositif de réseau ; une entité MAC du dispositif terminal détermine s'il faut commencer à entrer un temps d'activité d'un cycle DRX après que la demande de planification a été envoyée, le cycle DRX étant configuré pour l'entité MAC du dispositif terminal.
Patent WO-2019128411-A1 (WO)
Title: 三行星排自动变速器及车辆
Inventor: Tai changning
IPC: F16H3/64
Filed: 2018-10-22
Abstract: 一种三行星排自动变速器及车辆，包括输入构件（5）和输出构件（6），第一、第二、第三行星排（1、2、3），第一、第二、第三离合器（C1、C2、C3）以及第一、第二、第三制动器（B1 、B2、 B3）；其中输入构件（5）与第二太阳轮（21）固定连接，输出构件（6）与第一齿圈（13）固定连接，第一行星架（14）与第二齿圈（22）固定连接，第二行星架（23）与第三齿圈（32）固定连接，第三太阳轮（31）固定不动，第一制动器（B1）选择性闭合制动第一后太阳轮（12），第二制动器（B2）选择性闭合制动第一前太阳轮（11），第三制动器（B3）选择性闭合同时制动第一行星架（14）及第二齿圈（22），第一后太阳轮（12）通过第一离合器（C1）与输入构件（5）连接，第三行星架（33）通过第三离合器（C3）与输出构件（6）连接，第二离合器（C2）闭合将第二太阳轮（21）、第二齿圈（22）及第二行星架（23）中的任意两个构件连接，使得第二行星排（2）整体回转。
Patent WO-2019096047-A1 (WO)
Title: 界面显示、界面数据处理方法、客户端及服务器
Inventor: JIANG JUN
IPC: G06F9/451
Filed: 2018-11-07
Abstract: 本说明书实施方式公开了一种界面显示、界面数据处理方法、客户端及服务器，其中，所述界面显示方法包括：采集与所述客户端相关的状态信息；根据所述状态信息生成状态表征参数；其中，所述状态表征参数用于表示所述客户端的用户的情感；根据所述状态表征参数制定界面数据；其中，所述界面数据具有与所述情感相对应的显示元素；根据所述显示元素显示所述界面。本说明书提供的技术方案，能够更加智能地展示个性化内容。
Patent WO-2020093379-A1 (WO)
Inventor: YING BINBIN
IPC: G01N35/00
Filed: 2018-11-09
Abstract: A nanofibrillated-cellulose-paper-based microfluidic device comprising a transparent hollow channel fluidly connecting a fluid inlet to a fluid outlet, the transparent hollow channel comprise a fluid flow path defined by a floor, two or more side walls, and a ceiling, the floor comprises a transparent nanofibrillated cellulose paper, and the ceiling comprises a transparent NFC paper. The device is pump-free and broadening the application of paper-based microfluidics.
Patent WO-2019096145-A1 (WO)
Inventor: YU FENG
IPC: H04L47/32
Filed: 2018-11-14
Abstract: Provided are a method and device for avoiding consecutive failures of data packet transmission, relating to the field of communications. The method comprises: a first access-layer entity of a sending end maintaining a transmission state of a previous data packet of the first access-layer entity, wherein the transmission state comprises transmission success, transmission failure or packet loss; and if the transmission state of the previous data packet is transmission failure, the sending end adjusting a transmission parameter of a current data packet. The method provided in the embodiments of the present application ensure that, in a data transmission process, the scenario where two consecutive application-layer data packets both fail to be transmitted will not occur, improving the reliability of data transmission.
Patent WO-2020107220-A1 (WO)
Inventor: LU QIANXI
IPC: H04W36/08
Filed: 2018-11-27
Abstract: Provided are a wireless communication method, a terminal device and a network device. The wireless communication method is used for the terminal device, and when the network device connected to the terminal device is switched from a source network device to a target network device, the connection between the terminal device and the source network device and the connection between the terminal device and the target network device are both maintained. Said method comprises: when the terminal device satisfies a first condition, releasing the connection between the terminal device and a source network device. In the embodiments of the present application, during switching of the terminal device, the connection between the terminal device and the source network device and the connection between the terminal device and the target network device are both maintained, effectively reducing the delay in the process of switching the network device connected to the terminal device from the source network device to the target network device.
Patent WO-2019134471-A1 (WO)
Inventor: HAO ZHANDUO
IPC: H01M10/613
Filed: 2018-12-03
Abstract: A battery replacement method for an electric vehicle comprises the following steps: acquiring current fluid level information of a cooling fluid of a vehicle requiring battery replacement; and performing, according to the current fluid level information, matching to determine a battery having a temperature corresponding to the vehicle. The method can achieve an object of stabilizing a volume of a cooling fluid in an electric vehicle, thereby effectively preventing an excessively small or large volume of a cooling fluid in a vehicle due to frequent battery replacement. The invention eliminates safety risks associated with an excessively large or small volume of a cooling fluid in a vehicle, thereby ensuring driving safety.
Patent WO-2019144703-A1 (WO)
Title: Electronic device, prompting method and related product
Inventor: ZHANG HAIPING
IPC: G06F11/30
Filed: 2018-12-03
Abstract: An electronic device, a prompting method and a related product. The electronic device includes a processor as well as a display and a memory connected with the processor. The display is configured to display an application program running in foreground. The memory is configured to store a preset application program, a falling probability corresponding to the preset application program being higher than a preset falling probability and the falling probability corresponding to the preset application program being a probability that the electronic device falls when the preset application program runs in foreground. The processor is configured to detect whether the application program running in foreground is the preset application program or not and control the display to output a prompting message when it is detected that the application program running in foreground is the preset application program.
Patent WO-2020118796-A1 (WO)
Inventor: LIN ZILIANG
IPC: B62D1/04
Filed: 2018-12-29
Abstract: 一种蓝牙无线连接及带功能显示屏和显示灯的汽车方向盘，通过蓝牙无线连接实现OBD系统与方向盘的LED显示灯组（4）和显示屏（3）相连，显示屏（3）实时显示OBD系统提供的汽车车况数据，而LED显示灯组（4）同步模拟显示显示屏（3）所显示的内容，使人更直观地感知车速和发动机转速等车况数据的变化，尤其是车速运行较高或转速高时呈现的全亮状态在视觉上感受动力的澎湃，结合发动机提升声音的听觉感觉和汽车行驶的身体知觉感觉使驾驶者予以兴奋刺激的感觉，提高了行车的体验性。另外，显示屏（3）能显示实时车速和实时油耗此行车时关心的两大数据，以及配以图形辅助更显直观化和数据的识别；缩短了行车观察相关行车信息的距离和视觉，使人更短距离地了解行车的情况。
Patent WO-2020010829-A1 (WO)
Inventor: YANG XIN
IPC: G01J1/10
Filed: 2019-01-07
Abstract: 一种激光投射器(20)的检测方法包括：(01)控制激光投射器(20)向预定平面(131)投射激光；(02)获取由预定平面(131)调制的激光图案(30)；(03)依据激光图案(30)的灰度信息选取激光图案(30)中的高亮区域(31)；(04)获取激光投射器(20)投向高能区域(50)的激光的能量以作为检测能量，高能区域(50)为预定平面(131)上与高亮区域(31)对应的区域；及(05)依据检测能量，判断激光投射器(20)的投射能量是否满足安全标准。
Patent WO-2019196541-A1 (WO)
Inventor: ZHAO BIN
IPC: H04M1/02
Filed: 2019-01-28
Abstract: 一种壳体组件(100)及移动终端(200)，壳体组件(100)包括壳体(10)及安装在壳体(10)上的支架(20)。壳体(10)包括相背的第一面(11)及第二面(12)，第一面(11)开设有贯穿第二面(12)的第一穿孔(111)及第二穿孔(112)，第二面(12)所在的一侧形成有壳体收容腔(15)，壳体收容腔(15)与第一穿孔(11)对应。支架(20)包括相背的正面(21)及背面(22)，背面(22)开设有支架收容腔(23)，正面(21)开设有与支架收容腔(23)对应的支架通孔(24)，正面(21)设置在第二面(12)上，支架通孔(24)与第二穿孔(112)对应。
Patent WO-2020155206-A1 (WO)
Inventor: SHAN JIANFENG
IPC: G02F1/13363
Filed: 2019-02-19
Abstract: La présente invention concerne une couche de filtre optique et un dispositif d'affichage. La couche de film optique comprend : une couche optique isotrope, une pluralité de rainures formées sur un côté de la couche optique isotrope ; une couche optique anisotrope à axe optique unique, comprenant une partie en forme de plaque et une pluralité de structures convexes qui correspondent à la forme et à la taille des rainures et qui sont fixées à un côté de la partie en forme de plaque, l'indice de réfraction de lumière ordinaire de la couche optique anisotrope à axe optique unique est supérieur à celui de la couche optique isotrope ; une première couche de réseau, empilée sur le côté de la couche optique anisotrope à axe optique unique à l'opposé de la couche optique isotrope ou incorporée dans le côté de la couche optique anisotrope à axe optique unique à l'opposé de la couche optique isotrope.
Patent WO-2020168513-A1 (WO)
Inventor: LIU YANG
IPC: H04W72/12
Filed: 2019-02-21
Abstract: The present disclosure relates to the technical field of wireless communications. Disclosed are a data transmission method and device, a system and a storage medium. The method comprises: detecting at least two target physical downlink control channels (PDCCHs), each target PDCCH carrying target downlink control information (DCI), the target DCI being used for scheduling a target user equipment (UE); upon detecting the target DCI on a particular target PDCCH, receiving, according to the schedule of the target DCI, downlink data sent by an access network device to the target UE. By means of the present disclosure, the probability that a UE correctly receives DCI can be increased.
Patent WO-2019179326-A1 (WO)
Inventor: WU JIN
IPC: G06F9/451
Filed: 2019-03-11
Abstract: Provided are an application interface display method and apparatus, and a mobile device. The method comprises: creating a window container control in a desktop, and starting a target application, wherein the target application is an application which is embedded in the desktop and needs to display an application interface, and the desktop is displayed on a screen; acquiring drawing information of the target application by means of the window container control, and drawing the application interface of the target application based on the drawing information (203); and taking the application interface of the target application as a parallel page of an interface of the desktop and displaying same on the screen by means of the window container control (204).
Patent WO-2020155352-A1 (WO)
Inventor: XING ZHIGANG
IPC: F24F1/028
Filed: 2019-03-28
Abstract: A window-type air conditioner (1), the window-type air conditioner (1) being supported on an opening (5) of a wall body (4), and a movable window (3) being provided within the opening (5), the window-type air conditioner (1) comprising: a housing (2), an accommodating groove (21) being provided on an outer peripheral wall of the housing (2), at least a portion of the window (3) being extendable into the accommodating groove (21); an indoor wind wheel (6); an indoor heat exchanger (500), the indoor heat exchanger (500) comprising a first heat exchange portion (560) and a second heat exchange portion (570), the first heat exchange portion (560) extending vertically, an upper end of the second heat exchange portion (570) being connected to a lower end of the first heat exchange portion (560), and a lower end of the second heat exchange portion (570) obliquely extending in a direction towards the indoor wind wheel (6); and a filter screen (600).
Patent WO-2019205896-A1 (WO)
Inventor: HUANG YUHONG
IPC: H04W12/71
Filed: 2019-04-01
Abstract: 本公开实施例提供了一种信息处理方法、网络设备及设备，其方法包括：接收第一标识以及第一请求消息；其中，所述第一请求消息为针对终端的附着请求消息或跟踪区更新请求消息或注册请求消息，所述第一标识是根据所述终端的终端标识和/或第一信息确定的。
Patent WO-2020211168-A1 (WO)
Title: Tft array substrate and display panel
Inventor: ZHANG LIUQI
IPC: H01L27/32
Filed: 2019-05-27
Abstract: Provided are a TFT array substrate and a display device. In the TFT array substrate of the present invention, each pixel is provided with a first thin film transistor therein. For the first thin film transistors of the pixels at the Nth row, gate electrodes are electrically connected to the N+1th scan line, drain electrodes are electrically connected to the Nth scan line, and source electrodes receive power supply negative voltages, such that scan signals received by the pixels can be independently pulled down within the respective pixels, thereby greatly reducing fall time of the scan signals, and ensuring display quality of a display panel.
Patent WO-2020119036-A1 (WO)
Inventor: FENG JIWEI
IPC: H05K9/00
Filed: 2019-05-30
Abstract: 本发明公开了一种具有防雨防尘和电磁屏蔽功能的通风装置，属于电磁屏蔽技术领域。该通风装置包括主体、防雨部件、防尘部件和电磁屏蔽部件，所述主体为密闭中空腔体，主体上设有进风口和出风口，所述电磁屏蔽部件设在主体上的出风口一侧，所述防雨部件安装在主体上并与主体围成一空腔，该空腔通过进风口与主体的内部连通，且该空腔的底部设有与外界连通的通风口，所述防尘部件安装在通风口处；所述主体内设有用于打开和封闭进风口的转动部件。本发明具备良好的防雨功能和防沙防尘功能；可根据需要，控制百叶窗上叶片的开合角度，方便对室内或舱内的温度进行调节，实用性强，可靠性高。